1 # Test NOCROSSREFS in a linker script.
2 # By Ian Lance Taylor, Cygnus Support.
3 # Copyright (C) 2000-2016 Free Software Foundation, Inc.
5 # This file is part of the GNU Binutils.
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 set test1 "NOCROSSREFS 1"
23 set test2 "NOCROSSREFS 2"
24 set test3 "NOCROSSREFS 3"
25 set test4 "NOCROSSREFS_TO 1"
26 set test5 "NOCROSSREFS_TO 2"
27 set test6 "NOCROSSREFS_TO 3"
28 set test7 "NOCROSSREFS_TO 4"
30 if { ![is_remote host] && [which $CC] == 0 } {
42 set old_CFLAGS "$CFLAGS"
44 # Pass -fplt to CC since -fno-plt doesn't work with NOCROSSREFS tests.
47 set CC "$CC $PLT_CFLAGS"
49 # Xtensa targets currently default to putting literal values in a separate
50 # section and that requires linker script support, so put literals in text.
51 if [istarget xtensa*-*-*] {
52 set CFLAGS "$CFLAGS -mtext-section-literals"
55 # If we have a compiler that doesn't use/reference dot-symbols, then
56 # calls to functions reference the .opd section function descriptor.
57 # This makes NOCROSSREFS rather useless on powerpc64.
58 if [istarget powerpc64-*-*] {
59 set CFLAGS "$CFLAGS -mcall-aixdesc"
62 # Prevent the use of the MeP's small data area which references a symbol
63 # called __sdabase which will not be defined by our test linker scripts.
64 if [istarget mep*-*-elf] {
68 # The .dsbt section and __c6xabi_DSBT_BASE are not defined in our test
70 if [istarget tic6x*-*-*] {
71 set CFLAGS "-mno-dsbt -msdata=none"
74 if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
75 || ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
78 set CFLAGS "$old_CFLAGS"
83 set flags [big_or_little_endian]
85 if [istarget sh64*-*-elf] {
86 # This is what gcc passes to ld by default.
90 # arc-elf32 requires the symbol __SDATA_BEGIN__ to always be present.
91 if [istarget arc*-*-elf32] {
92 set flags "$flags --defsym=__SDATA_BEGIN__=0"
95 # IA64 has both ordered and unordered sections in an input file.
98 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"]
100 set exec_output [prune_warnings $exec_output]
102 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
104 if [string match "" $exec_output] then {
107 verbose -log "$exec_output"
108 if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] {
115 # Check cross references within a single object.
117 if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
119 set CFLAGS "$old_CFLAGS"
124 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"]
125 set exec_output [prune_warnings $exec_output]
127 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
129 if [string match "" $exec_output] then {
132 verbose -log "$exec_output"
133 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
140 # Check cross references for ld -r
142 if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } {
144 set CFLAGS "$old_CFLAGS"
149 if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] {
151 set CFLAGS "$old_CFLAGS"
156 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"]
158 set exec_output [prune_warnings $exec_output]
160 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
162 if [string match "" $exec_output] then {
165 verbose -log "$exec_output"
169 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross4 -T $srcdir/$subdir/cross4.t tmpdir/cross4.o"]
170 set exec_output [prune_warnings $exec_output]
172 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
174 if [string match "" $exec_output] then {
177 verbose -log "$exec_output"
181 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross5 -T $srcdir/$subdir/cross5.t tmpdir/cross4.o"]
182 set exec_output [prune_warnings $exec_output]
184 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
186 if [string match "" $exec_output] then {
189 verbose -log "$exec_output"
190 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
197 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross6 -T $srcdir/$subdir/cross6.t tmpdir/cross3.o"]
198 set exec_output [prune_warnings $exec_output]
200 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
202 if [string match "" $exec_output] then {
205 verbose -log "$exec_output"
209 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross7 -T $srcdir/$subdir/cross7.t tmpdir/cross3.o"]
210 set exec_output [prune_warnings $exec_output]
212 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
214 if [string match "" $exec_output] then {
217 verbose -log "$exec_output"
218 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
225 set CFLAGS "$old_CFLAGS"